Alright, let's work through 6639981 times 49941552 step by step
6639981 × 49941552 = 49941552 × (6639981)
+ 49941552 × 1 resulting in 49941552
+ 49941552 × 80 producing 3995324160
+ 49941552 × 900 giving us 44947396800
+ 49941552 × 9000 that equals 449473968000
+ 49941552 × 30000 that is equal 1498246560000
+ 49941552 × 600000 that results in 29964931200000
+ 49941552 × 6000000 resulting in 299649312000000

= 331610956390512
